Return-Path: Sender: (Marvin Kaye) To: lml Date: Wed, 21 May 2003 16:19:25 -0400 Message-ID: X-Original-Return-Path: Received: from puffin.mail.pas.earthlink.net ([207.217.120.139] verified) by logan.com (CommuniGate Pro SMTP 4.1b6) with ESMTP id 2358036 for lml@lancaironline.net; Wed, 21 May 2003 16:16:14 -0400 Received: from lsanca1-ar17-4-61-194-247.lsanca1.elnk.dsl.genuity.net ([4.61.194.247] helo=skipslater) by puffin.mail.pas.earthlink.net with asmtp (Exim 3.33 #1) id 19Ia0T-00018C-00 for lml@lancaironline.net; Wed, 21 May 2003 13:16:13 -0700 X-Original-Message-ID: <001401c31fd5$c4968600$f7c23d04@earthlink.net> Reply-To: "Skip Slater" From: "Skip Slater" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Stiff controls at higher speeds in IV-P X-Original-Date: Wed, 21 May 2003 13:15:02 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0007_01C31F9A.FCC80F20" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2720.3000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-ELNK-Trace: cbee950bdf563876c8ad50643b1069f8239a348a220c2609d6c8355e2c5320434c6732d7a65121d3350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c This is a multi-part message in MIME format. ------=_NextPart_000_0007_01C31F9A.FCC80F20 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Gerry, The stiffness is due to aerodynamic control loading at higher speeds = combined with the short lever arm on the sticks. It's common in the IV = and ES. My understanding is that it was a significant enough issue in = the Columbia that a servo tab was added to the ailerons to reduce the = forces needed in the roll axis in order to appease the FAA. I have an S-Tec 55 on my ES and have had no problem with it turning the = plane at any speed. If your A/P is rough, you might want to check the = tension on the cable running between the servo and the pushrod it's = connected to. I had sloppiness in my pitch control on A/P after flying = for awhile. My cable had stretched a bit and needed to be tightened up. = It's been fine ever since. Skip Slater N540ES ------=_NextPart_000_0007_01C31F9A.FCC80F20 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Gerry,
 
The stiffness is due to aerodynamic = control loading=20 at higher speeds combined with the short lever arm on the=20 sticks.  It's common in the IV and ES.  My understanding is = that it=20 was a significant enough issue in the Columbia that a servo tab was = added=20 to the ailerons to reduce the forces needed in the roll axis in order to = appease=20 the FAA.
 
I have an S-Tec 55 on my ES and have = had no problem=20 with it turning the plane at any speed.  If your A/P is rough, you = might=20 want to check the tension on the cable running between the servo and the = pushrod=20 it's connected to.  I had sloppiness in my pitch control on A/P = after=20 flying for awhile.  My cable had stretched a bit and needed to be = tightened=20 up.  It's been fine ever since.
 
Skip Slater
N540ES
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